From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alex Shi Subject: Re: [PATCH] scsi/mpt2sas: fix unsafe preempt setting for ioc Date: Tue, 10 Apr 2012 09:15:12 +0800 Message-ID: <4F8389A0.6020205@intel.com> References: <1332742810-5116-1-git-send-email-alex.shi@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: Sender: linux-kernel-owner@vger.kernel.org To: Alex Shi Cc: JBottomley@parallels.com, Nagalakshmi.Nandigama@lsi.com, linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org, roland@purestorage.com List-Id: linux-scsi@vger.kernel.org On 04/06/2012 07:54 PM, Alex Shi wrote: > Without the following patch, the driver will have many complain after > smp_processor_id debug enabled. > > So would you like consider to pick this patch or find a better way to > remove them? Anyone like to have a look on the following complain? > > Call Trace:^M > [] debug_smp_processor_id+0xe7/0x100^M > [] mpt2sas_base_put_smid_default+0x34/0x70 [mpt2sas]^M > [] _base_event_notification+0x112/0x240 [mpt2sas]^M > [] _base_make_ioc_operational+0x471/0x1240 [mpt2sas]^M > [] ? lockdep_init_map+0xa3/0x560^M > [] ? trace_hardirqs_on_caller+0x10d/0x1a0^M > [] ? debug_mutex_init+0x38/0x50^M > [] mpt2sas_base_attach+0x1237/0x1630 [mpt2sas]^M > [] _scsih_probe+0x408/0x620 [mpt2sas]^M > [] local_pci_probe+0x5c/0xd0^M > [] pci_device_probe+0x101/0x120^M > [] driver_probe_device+0x9c/0x300^M > [] __driver_attach+0xab/0xb0^M > [] ? driver_probe_device+0x300/0x300^M > [] bus_for_each_dev+0x5e/0x90^M > [] driver_attach+0x1e/0x20^M > [] bus_add_driver+0x1c0/0x2b0^M >